/* 备案号样式美化 */
.beian-info {
  text-align: center;
  margin-top: 8px;
}
.beian-link {
  color: #aaa;
  text-decoration: none;
  font-size: 1rem;
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  transition: color 0.2s;
}
.beian-link:hover {
  color: #00bcd4;
}
.beian-icon {
  font-size: 1.1em;
  vertical-align: middle;
  color: #aaa !important;
}
.beian-text {
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  font-weight: 500;
  font-size: 1.05em;
  letter-spacing: 1px;
}
/**
 * 云云星羽网络科技工作室 - 简约科技风官网样式表
 * 融合现代科技设计与专业官网标准
 */

/* CSS变量定义 - 科技风设计系统 */
:root {
  /* 科技风颜色系统 */
  --primary-color: #00d4ff;
  --secondary-color: #00ff88;
  --accent-color: #0ea5e9;
  --tech-blue: #00d4ff;
  --tech-green: #00ff88;
  --tech-purple: #8b5cf6;

  /* 深色系背景 */
  --bg-dark: #0f172a;
  --bg-dark-secondary: #1e293b;
  --bg-dark-tertiary: #334155;

  /* 文字颜色 */
  --text-primary: #ffffff;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;

  /* 间距系统 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;

  /* 字体系统 */
  --font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 4rem;

  /* 阴影系统 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
  --shadow-tech: 0 0 20px rgba(0, 212, 255, 0.3);

  /* 过渡系统 */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* 边框半径 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --radius-full: 50px;
}

/* 基础重置 */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  overflow-x: hidden;
}

/* 通用容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* 加载动画样式 - 更新为科技风 */
.loading-overlay-fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.95) 0%,
    rgba(30, 41, 59, 0.95) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow);
}

.loading-container-fullscreen {
  text-align: center;
  background: rgba(0, 212, 255, 0.05);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl) var(--spacing-xl);
  border: 1px solid rgba(0, 212, 255, 0.2);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand-name-fullscreen {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  background: linear-gradient(45deg, var(--tech-blue), var(--tech-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.subtitle-fullscreen {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  letter-spacing: 1px;
}

.star-animation-container {
  margin: var(--spacing-xl) 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.star-svg {
  width: 120px;
  height: 120px;
  filter: drop-shadow(0 0 15px rgba(0, 212, 255, 0.6));
}

.rotating-star {
  animation: rotate 2s linear infinite;
  transform-origin: center;
}

.progress-circle {
  animation: progressFill 0.5s ease-out forwards;
  transform: rotate(-90deg);
  transform-origin: center;
}

.loading-text-fullscreen {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  margin: var(--spacing-lg) 0;
  animation: pulse 2s infinite;
}

/* 科技风进度条样式 */
.progress-bar-container {
  margin-top: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  max-width: 320px;
  position: relative;
}

.progress-bar {
  width: 100%;
  height: 10px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 212, 255, 0.2);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 0 rgba(0, 212, 255, 0.1);
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(
    90deg,
    var(--tech-blue) 0%,
    var(--tech-green) 50%,
    var(--accent-color) 100%
  );
  border-radius: 6px;
  transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  opacity: 0.9;
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  animation: techGlow 4s ease-in-out infinite;
}

.progress-bar-fill::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.3) 50%,
    transparent 100%
  );
  border-radius: 6px;
  animation: shimmer 0.5s ease-in-out infinite;
}

.progress-percentage {
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  background: linear-gradient(45deg, var(--tech-blue), var(--tech-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--tech-blue);
  border-radius: 50%;
  animation: float 3s infinite ease-in-out;
  box-shadow: 0 0 10px currentColor;
}

/* 科技风导航栏样式 */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.9) 0%,
    rgba(30, 41, 59, 0.9) 100%
  );
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.2);
  z-index: 1000;
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

header.scrolled {
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.95) 0%,
    rgba(30, 41, 59, 0.95) 100%
  );
  backdrop-filter: blur(25px);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
  border-bottom-color: rgba(0, 212, 255, 0.3);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo {
  display: flex;
  align-items: center;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  text-shadow: 0 2px 10px rgba(0, 212, 255, 0.3);
}

.logo-star {
  background: linear-gradient(45deg, var(--tech-blue), var(--tech-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-right: var(--spacing-xs);
  animation: twinkle 2s infinite;
  filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.6));
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: var(--font-size-lg);
  transition: all var(--transition-base);
  position: relative;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(0, 212, 255, 0.1);
  backdrop-filter: blur(10px);
  transform: translateY(-1px);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(45deg, var(--tech-blue), var(--tech-green));
  transition: all var(--transition-base);
  transform: translateX(-50%);
  border-radius: 1px;
}

.nav-links a:hover::after {
  width: 80%;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  gap: 4px;
  z-index: 1001;
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background: var(--tech-blue);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* 全新科技风Hero区域样式 */
.hero {
  min-height: 100vh;
  background: linear-gradient(
    135deg,
    var(--bg-dark) 0%,
    var(--bg-dark-secondary) 50%,
    var(--bg-dark-tertiary) 100%
  );
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Hero背景粒子画布 */
.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Hero背景网格 */
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background-image: linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
}

.hero-content-wrapper {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
  min-height: 100vh;
  padding: var(--spacing-xxl) 0;
}

/* Hero左侧文字区域 */
.hero-text-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.hero-title-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.hero-main-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.title-line-1 {
  display: block;
  background: linear-gradient(
    135deg,
    var(--text-primary) 0%,
    var(--text-secondary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleGlow 4s ease-in-out infinite;
}

.title-line-2 {
  display: block;
  background: linear-gradient(
    135deg,
    var(--tech-blue) 0%,
    var(--tech-green) 50%,
    var(--accent-color) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: var(--spacing-sm);
  animation: titleGlow 4s ease-in-out infinite 1s;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
  font-weight: 300;
}

.subtitle-highlight {
  color: var(--tech-blue);
  font-weight: 500;
  display: block;
  margin-top: var(--spacing-xs);
}

/* Hero特色标签 */
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.hero-tag {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--radius-full);
  color: var(--tech-blue);
  font-size: var(--font-size-sm);
  font-weight: 500;
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
  cursor: pointer;
}

.hero-tag:hover {
  background: rgba(0, 212, 255, 0.2);
  border-color: rgba(0, 212, 255, 0.5);
  transform: translateY(-2px);
  box-shadow: var(--shadow-tech);
}

.hero-tag i {
  transition: transform var(--transition-base);
}

.hero-tag:hover i {
  transform: scale(1.1);
}

/* Hero按钮组 */
.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  min-width: 180px;
  justify-content: center;
  border: 2px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--tech-blue), var(--accent-color));
  color: var(--text-primary);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--tech-green), var(--tech-blue));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary span,
.btn-primary i {
  position: relative;
  z-index: 1;
}

.btn-primary i {
  transition: transform var(--transition-base);
}

.btn-primary:hover i {
  transform: translateX(4px);
}

.btn-outline {
  background: transparent;
  border-color: rgba(0, 255, 136, 0.5);
  color: var(--tech-green);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(0, 255, 136, 0.1);
  border-color: var(--tech-green);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 255, 136, 0.2);
}

.btn-outline i {
  transition: transform var(--transition-base);
}

.btn-outline:hover i {
  transform: scale(1.1);
}

/* Hero统计数据 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(0, 212, 255, 0.2);
}

.stat-item {
  text-align: left;
  cursor: pointer;
  transition: transform var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-4px);
}

.stat-number {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--tech-blue);
  margin-bottom: var(--spacing-xs);
  transition: all var(--transition-base);
}

.stat-item:hover .stat-number {
  transform: scale(1.1);
  text-shadow: 0 0 20px currentColor;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  transition: color var(--transition-base);
}

.stat-item:hover .stat-label {
  color: var(--text-secondary);
}

/* Hero右侧3D科技图形区域 */
.hero-visual-section {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.tech-visual-container {
  position: relative;
  width: clamp(300px, 40vw, 500px);
  height: clamp(300px, 40vw, 500px);
}

/* 旋转的外环 */
.tech-outer-ring {
  position: absolute;
  inset: 0;
  border: 2px solid rgba(0, 212, 255, 0.3);
  border-radius: 50%;
  animation: spin-slow 20s linear infinite;
}

.ring-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.ring-dot-1 {
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--tech-blue);
  box-shadow: 0 0 15px currentColor;
}

.ring-dot-2 {
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--tech-green);
  box-shadow: 0 0 15px currentColor;
  animation-delay: 0.5s;
}

.ring-dot-3 {
  left: -6px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--accent-color);
  box-shadow: 0 0 15px currentColor;
  animation-delay: 1s;
}

.ring-dot-4 {
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--tech-purple);
  box-shadow: 0 0 15px currentColor;
  animation-delay: 1.5s;
}

/* 中间的几何形状 */
.tech-middle-shapes {
  position: absolute;
  inset: 15%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech-shape {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.tech-shape-1 {
  background: linear-gradient(
    135deg,
    rgba(0, 212, 255, 0.1) 0%,
    rgba(14, 165, 233, 0.1) 100%
  );
  transform: rotate(45deg);
  animation: pulse-slow 4s ease-in-out infinite;
}

.tech-shape-2 {
  inset: 15%;
  background: linear-gradient(
    135deg,
    rgba(0, 255, 136, 0.1) 0%,
    rgba(0, 212, 255, 0.1) 100%
  );
  transform: rotate(-45deg);
  animation: pulse-slow 4s ease-in-out infinite 2s;
  border-color: rgba(0, 255, 136, 0.3);
}

/* 中心发光核心 */
.tech-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
}

.core-inner {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--tech-blue), var(--tech-green));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s infinite;
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
}

.core-inner::before {
  content: "";
  width: 50%;
  height: 50%;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  animation: ping 2s infinite;
}

.core-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--tech-blue), var(--tech-green));
  border-radius: 50%;
  filter: blur(15px);
  opacity: 0.5;
  animation: pulse 2s infinite;
}

/* 浮动的科技元素 */
.floating-elements {
  position: absolute;
  inset: 0;
}

/* 动态连接线 */
.tech-lines {
  position: absolute;
  inset: 0;
}

.tech-line {
  position: absolute;
  width: 1px;
  height: 40%;
  top: 30%;
  left: var(--position);
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0, 212, 255, 0.6) 50%,
    transparent 100%
  );
  animation: fadeInOut 2s ease-in-out infinite;
  animation-delay: var(--delay);
}

/* 背景光晕效果 */
.tech-glow {
  position: absolute;
  inset: -20%;
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}

.tech-glow-1 {
  background: radial-gradient(
    circle,
    rgba(0, 212, 255, 0.1) 0%,
    transparent 70%
  );
  animation: pulse-slow 6s ease-in-out infinite;
}

.tech-glow-2 {
  background: radial-gradient(
    circle,
    rgba(0, 255, 136, 0.1) 0%,
    transparent 70%
  );
  animation: pulse-slow 6s ease-in-out infinite 3s;
}

/* Hero底部渐变遮罩 */
.hero-bottom-mask {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 128px;
  background: linear-gradient(to top, var(--bg-dark) 0%, transparent 100%);
  pointer-events: none;
}

/* 鼠标跟随光效 */
.mouse-glow {
  position: fixed;
  width: 384px;
  height: 384px;
  background: radial-gradient(
    circle,
    rgba(0, 212, 255, 0.05) 0%,
    transparent 70%
  );
  border-radius: 50%;
  pointer-events: none;
  filter: blur(40px);
  transition: all 0.3s ease-out;
  opacity: 0;
  z-index: 1;
}

/* 服务区域样式 - 更新为深色主题 */
.services {
  padding: 100px 0;
  background: linear-gradient(
    135deg,
    var(--bg-dark-secondary) 0%,
    var(--bg-dark) 100%
  );
  position: relative;
}

.services::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
      circle at 20% 80%,
      rgba(0, 212, 255, 0.05) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(0, 255, 136, 0.05) 0%,
      transparent 50%
    );
  pointer-events: none;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.section-title p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.service-card {
  background: rgba(0, 212, 255, 0.05);
  padding: 40px 30px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid rgba(0, 212, 255, 0.2);
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 1;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0, 212, 255, 0.2);
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.4);
}

.service-icon {
  font-size: 3rem;
  color: var(--tech-blue);
  margin-bottom: var(--spacing-lg);
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
  text-shadow: 0 0 20px currentColor;
}

.service-content h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.service-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.service-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  justify-content: center;
  margin-top: var(--spacing-md);
}

.feature-tag {
  padding: 4px 12px;
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: var(--radius-full);
  color: var(--tech-green);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

/* 关于我们区域样式 - 深色主题 */
.about {
  padding: 100px 0;
  background: linear-gradient(
    135deg,
    var(--bg-dark) 0%,
    var(--bg-dark-secondary) 100%
  );
  position: relative;
}

.about::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at 70% 30%,
    rgba(0, 212, 255, 0.04) 0%,
    transparent 60%
  );
  pointer-events: none;
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: 30px;
  color: var(--text-primary);
}

.about-text p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.about-advantages {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: rgba(0, 212, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 212, 255, 0.2);
  transition: all var(--transition-base);
}

.advantage-item:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateX(10px);
}

.advantage-item i {
  color: var(--tech-blue);
  font-size: var(--font-size-2xl);
  margin-top: 4px;
}

.advantage-item h4 {
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
}

.advantage-item p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
}

.company-info {
  background: rgba(0, 212, 255, 0.05);
  padding: 30px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--tech-blue);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 1;
}

.company-info h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.info-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.info-item i {
  color: var(--tech-blue);
  margin-right: var(--spacing-sm);
  margin-top: 2px;
  width: 16px;
}

.info-item div {
  color: var(--text-secondary);
}

.info-item strong {
  color: var(--text-primary);
}

/* 底部样式 - 深色主题 */
footer {
  background: linear-gradient(
    135deg,
    var(--bg-dark-tertiary) 0%,
    var(--bg-dark) 100%
  );
  color: var(--text-primary);
  padding: 60px 0 20px;
  border-top: 1px solid rgba(0, 212, 255, 0.2);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-column h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.footer-column p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-btn,
.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(0, 212, 255, 0.1);
  color: var(--tech-blue);
  border-radius: 50%;
  text-decoration: none;
  transition: all var(--transition-base);
  border: 1px solid rgba(0, 212, 255, 0.3);
  cursor: pointer;
}

.social-btn:hover,
.social-links a:hover {
  background: var(--tech-blue);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-tech);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

.footer-column li i {
  color: var(--tech-blue);
  margin-right: var(--spacing-sm);
  width: 16px;
}

.friend-links-container {
    margin-top: var(--spacing-lg);
}

#friend-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

#friend-links-list .friend-link-item {
    min-width: 150px;
}

#friend-links-list .friend-link-item a {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    height: 100%;
}

#friend-links-list .friend-link-item a:hover {
    color: var(--primary-color);
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-tech);
}

#friend-links-list .friend-link-item a .friend-link-icon {
    margin-right: var(--spacing-sm);
    width: 18px;
    height: 18px;
    object-fit: contain;
}

.copyright {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(0, 212, 255, 0.2);
  color: var(--text-tertiary);
}

/* 模态框样式 - 深色主题 */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal.show {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.modal-content {
  position: relative;
  background: var(--bg-dark-secondary);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--radius-md);
  max-width: 450px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.7);
  transition: transform var(--transition-base);
}

.modal.show .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) 25px;
  border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.modal-title {
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  margin: 0;
}

.close-btn {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 5px;
  border-radius: 50%;
  transition: all var(--transition-base);
}

.close-btn:hover {
  background: rgba(0, 212, 255, 0.1);
  color: var(--tech-blue);
}

.modal-body {
  padding: 25px;
  text-align: center;
}

.qrcode-container {
  margin-bottom: var(--spacing-lg);
}

.qrcode-img {
  max-width: 280px;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.modal-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.modal-tips {
  color: var(--text-tertiary);
  font-size: var(--font-size-sm);
}

/* 回到顶部按钮 - 科技风 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(45deg, var(--tech-blue), var(--accent-color));
  color: var(--text-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: var(--font-size-xl);
  box-shadow: var(--shadow-tech);
  transition: all var(--transition-base);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 1000;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

/* 科技风动画定义 */
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes spin-slow {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes progressFill {
  from {
    stroke-dashoffset: 283;
  }
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

@keyframes pulse-slow {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

@keyframes ping {
  75%,
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

@keyframes twinkle {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0.6;
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
    opacity: 1;
  }
}

@keyframes fadeInOut {
  0%,
  100% {
    opacity: 0;
  }
  50% {
    opacity: 0.8;
  }
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

@keyframes titleGlow {
  0%,
  100% {
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
  }
  50% {
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.6);
  }
}

@keyframes techGlow {
  0%,
  100% {
    box-shadow: 0 0 12px rgba(0, 212, 255, 0.4),
      inset 0 1px 0 rgba(255, 255, 255, 0.2);
    opacity: 0.9;
  }
  50% {
    box-shadow: 0 0 18px rgba(0, 255, 136, 0.5),
      inset 0 1px 0 rgba(255, 255, 255, 0.3);
    opacity: 0.8;
  }
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    transform: translateX(100%);
    opacity: 0;
  }
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .hero-content-wrapper {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }

  .hero-text-section {
    order: 2;
  }

  .hero-visual-section {
    order: 1;
  }

  .tech-visual-container {
    width: 300px;
    height: 300px;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: var(--spacing-xl) 0;
  }

  .hero-content-wrapper {
    padding: var(--spacing-xl) 0;
  }

  .hero-main-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    text-align: center;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: linear-gradient(
      135deg,
      rgba(15, 23, 42, 0.95) 0%,
      rgba(30, 41, 59, 0.95) 100%
    );
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    transition: right 0.3s ease;
    z-index: 1000;
    border-left: 1px solid rgba(0, 212, 255, 0.2);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links a {
    font-size: var(--font-size-xl);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    width: 200px;
    text-align: center;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
  }

  .nav-links a:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: translateX(-5px);
  }

  .mobile-menu-btn {
    display: flex;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .progress-bar {
    width: 250px;
  }

  .loading-container-fullscreen {
    padding: 30px 20px;
  }

  .brand-name-fullscreen {
    font-size: var(--font-size-3xl);
  }

  .tech-visual-container {
    width: 250px;
    height: 250px;
  }
}

@media (max-width: 480px) {
  .hero-main-title {
    font-size: clamp(1.5rem, 8vw, 2.5rem);
  }

  .section-title h2 {
    font-size: var(--font-size-3xl);
  }

  .about-text h2 {
    font-size: var(--font-size-3xl);
  }

  .progress-bar {
    width: 200px;
  }

  .brand-name-fullscreen {
    font-size: 1.8rem;
  }

  .tech-visual-container {
    width: 200px;
    height: 200px;
  }

  .hero-tags {
    justify-content: center;
  }

  .advantage-item {
    flex-direction: column;
    text-align: center;
  }
}

/* 1920x1080分辨率优化 */
@media (min-width: 1920px) and (min-height: 1080px) {
  .container {
    max-width: 1800px;
  }

  .hero-main-title {
    font-size: clamp(4rem, 8vw, 8rem);
  }

  .hero-subtitle {
    font-size: var(--font-size-2xl);
  }

  .tech-visual-container {
    width: 600px;
    height: 600px;
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  :root {
    --tech-blue: #00e5ff;
    --tech-green: #00ff9f;
    --text-secondary: #ffffff;
    --text-tertiary: #e0e0e0;
  }

  .hero-tag,
  .service-card,
  .company-info {
    border-width: 2px;
  }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
  .tech-outer-ring,
  .rotating-star,
  .progress-circle,
  .hero-grid,
  .ring-dot,
  .tech-shape,
  .core-inner,
  .core-glow,
  .tech-line,
  .tech-glow {
    animation: none;
  }

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* 打印样式 */
@media print {
  .hero-particles,
  .tech-outer-ring,
  .floating-elements,
  .tech-lines,
  .tech-glow,
  .mouse-glow {
    display: none;
  }

  .hero {
    background: white !important;
    color: black !important;
  }

  .hero-main-title,
  .section-title h2,
  .about-text h2 {
    color: black !important;
  }
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 212, 255, 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 212, 255, 0.5);
}

/* 选择文本样式 */
::selection {
  background: rgba(0, 212, 255, 0.3);
  color: white;
}

/* 焦点样式 */
:focus-visible {
  outline: 2px solid var(--tech-blue);
  outline-offset: 2px;
}